<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 表格 -->
      <el-table :data="goodsList" border stripe >
        <el-table-column prop="goods_name" label="商品名称"></el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元)" width="120px"></el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="90px"></el-table-column>
        <el-table-column label="创建事件" width="180px">
          <template slot-scope="scope">{{scope.row.add_time | dataFromat}}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button type="primary" size="mini" icon="el-icon-edit"></el-button>
            <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 20, 25]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      ></el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //查询数据对对象
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10
      },
      //查询数据保存
      goodsList: [],
      //页数
      total: 0
    };
  },
  created() {
    this.getGoodsList();
  },
  methods: {
    //更具分页获取对应的参数列表
    async getGoodsList() {
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取商品列表失败!");
      }
      this.goodsList = res.data.goods;
      this.total = res.data.total;
    },
    //触发事件重新获取数据
    handleSizeChange(newSize) {
        this.queryInfo.pagesize = newSize
        this.getGoodsList()
    },
    //触发事件重新获取页数
    handleCurrentChange(newPage) {
        this.queryInfo.pagenum = newPage
        this.getGoodsList()
    },
    //删除按钮 触发事件
    removeById(goods_id) {
        this.$confirm("此操作将永久删除该参数, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning"
      })
        .then(async () => {
          const { data: res } = await this.$http.delete(
            `goods/${goods_id}`
          );
          if (res.meta.status !== 200) {
            return this.$message.error("删除失败！");
          }
          this.getGoodsList();
          this.$message({
            type: "success",
            message: "删除成功!"
          });
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除"
          });
        });
    },
    //添加商品跳转页面
    goAddPage() {
      this.$router.push('/goods/add')
    }
  },
  computed: {}
};
</script>

<style lang="less" scoped>
.el-table {
    margin-top: 15px;
}
</style>